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Abstract: Inhibition mechanisms of sulphate reduction to methane-producing bacteria(MPB) in the process of anaerobic digestion of high-sulphate-content wastewater were described in this paper.They were described mainly by the competition between sulphate-
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文摘:本文通过硫酸盐还原菌和产甲烷菌的竞争、硫化物对产甲烷菌的毒害二方面,论述了在高硫酸盐有机废水厌氧处理过程中,硫酸盐还原作用对产甲烷菌活性的抑制机理,同时,介绍了当前高硫酸盐有机废水的厌氧处理工艺。 |
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Abstract: Inspired from the theory of clean room by clean air-condition technol ogy, a new concept for controlling the dust in fully mechanized working face was broug ht forth, and an air curtain was designed.
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文摘:受民用建筑大门空气幕的启发,将“洁净空调技术”中的“洁净棚理论”,创新并应用于综采工作面的防尘工程,设计了能阻止采煤机在截煤过程中产生的呼吸性粉尘向司机处扩散的隔尘装置——风帘。 |
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Abstract: Intelligent pressure transmitter plays an important role in field bus control system.This paper introduces the working principles and applications of LD301 series pressure transmitter.
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文摘:智能变送器在现场总线控制系统中占很重要的地位,本文介绍了LD301系列压力差压变送器的工作原理及应用。 |
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Abstract: Introduced in the following are the main structure and the main specifications of the hi-speed slot lathing machine for pins.Suggestions are put forth for the feed-in parameters,constant speed lathing,and the lathing parameter for the hard alloy
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文摘:介绍了国内研制的织针高速铣槽机的主要结构特点、技术参数,并通过生产使用提出对该机主辅加工进给参数、匀速切削,以及硬质合金刀片切削参数的改进意见,将为国产织针铣槽工艺水平和织针质量的提高产生积极的推动作用。 |
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Abstract: Introduced is the experience in replacing atmosperic riser with thermal-isolation riser and improving pouring system to eliminate shrinkages.
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文摘:介绍了用保温冒口代替大气压力冒口,改进浇注系统解决铸件缩孔问题的经验。 |
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Abstract: Introduced the Method of electronic-optical data highspeed acquisition of ultraviolet radiation of solid rocket plume.Online MAW is also discussed.
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文摘:详述了固体火箭羽烟紫外辐射的光电高速采集方法,并实时对导弹逼近告警。 |
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Abstract: Introduces a method to eliminate influence of power supply and air-feed system on exact measurement of micro-thrust of electric rocket in the gravity field, so micro-thrust can be measured accuratelg and automatically.
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文摘:介绍了在重力场中,消除电火箭自重及其供电供气系统对微小推力测量影响的方法,从而实现电火箭微小推力自动准确的测量。 |
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Abstract: Introduces the ideas of supply chain management into enterprise resource planning (ERP) systems, then integrates the cross divisional planning and optimization function of SCM and the strong transactional capability of ERP systems.
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文摘:通过对企业管理模式的探讨,在企业资源规划系统的基础上引入了供应链管理的思想,既强调了企业资源规划系统强大的事务处理能力,又重视供应链管理的复杂业务计划和整体优化功能。 |
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Abstract: Introducing the current and past research situation of the load carrying capacity of column made of the concrete filled steel tube including its constitutive relationship and the calculation of its load carrying capacity under both simple and co
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文摘:综述了国内外对钢管混凝土柱承载力计算的历史和现状,其主要内容包括圆形钢管混凝土的本构关系,单一应力及复杂应力状态下的承载力计算。 |
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Abstract: It advances an idea that transaction is the basic unit of product design activities,and sets up transaction model as an object-oriented representation for design goal,personnel,document objects,resources,constraints and statas.The model is integ
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文摘:提出了以设计事务作为产品设计活动基本单元的思想,采用面向对象的方法建立了设计事务模型,描述了产品设计的目标、组织、文档对象、资源、约束、状态等特征信息,建立了支持协同设计的设计事务预发布机制和相关设计事务触发机制,实现了产品和过程的集成建模。 |
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Abstract: It analyzes the domestic status of performance design and optimization about product, discusses the requirement of computer aided engineering during product development, puts forwards the strategy to popularize the structure analysis and optimal
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文摘:阐述了产品性能设计及优化方法在我国企业应用推广的现状,分析了产品开发领域对计算机辅助工程的需求,提出了结构分析与优化设计系统应用的策略。 |